Range hood
A technology for range hoods and fans, which is applied to the removal of oil fumes, household stoves/stoves, heating methods, etc. It can solve the problems of reduced effect of range hoods, damage to the negative pressure distribution of fume collection hoods, and inability to greatly improve the suction rate of range hoods, etc. , to achieve the lifting effect and the effect of increasing the central negative pressure area
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Example Embodiment
[0020] Example one:
[0021] Such as Figure 1 to Figure 4 As shown, the range hood in this embodiment is a single-fan range hood. The range hood includes a fan housing 1, a fume collecting hood 2, a main fan 3, and a rectifier board 5. Among them, the main fan 3 has one and is installed in In the fan housing 1, the main fan 3 is a centrifugal fan. The smoke collecting hood 2 is arranged under the fan housing 1. A rectifying cavity 4 is formed under the smoke collecting hood 2, and a rectangular rectifying plate 5 is installed in the rectifying cavity 4. The above-mentioned installation structure is the same as that of the existing range hood, and no detailed description will be given.
[0022] The range hood in this embodiment also includes a cross-flow fan 6, a smoke sensor 7, and a controller (not shown in the figure). A strip-shaped air inlet 51 is opened in the middle of the rectifier plate 5, and the strip-shaped air inlet 51 is distributed in front and back. , That is, the...
Example Embodiment
[0025] Embodiment two:
[0026] Such as Figure 5 with Image 6 As shown, the range hood in this embodiment is compared with the first embodiment. A main fan 3 is added in the fan housing 1 to form a dual fan range hood. The two main fans 3 are arranged in parallel and are respectively located on the left and right sides directly above the cross flow fan 6, and the central axis of the two main fans 3 and the central axis of the cross flow fan 6 are parallel to each other. An air outlet hood 8 is installed on the fan housing 1, the planes where the air inlet ends of the two main fans 3 are located on the same vertical plane, and the air outlets of the two main fans 3 are connected to the air outlet hood 8.
[0027] The working principle of the double-fan range hood through the cross-flow fan to improve the effect of the range hood is the same as that of the single-fan range hood in the first embodiment, and will not be further described here.
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